Cathode ray tube socket



July 30, 1963 M. SCHLEE CATHODE RAY TUBE SOCKET Filed June 29, 1959FlG.2.

INVENTORI MATTHEW SCHLEE, BY W 15 ATTORNEY.

IIIII" United States Patent 3,099,508 CATHODE RAY TUBE SOCKET MatthewSchlee, Liverpool, N.Y., assignor to General Electric Company, acorporation of New York Filed June 29, 1959, Ser. No. 823,380 1 Claim.(Cl. 339-193) This invention relates to a cathode ray tube socket andmore particularly to a tube socket of this type in which the externalelectrical connections are made thereto by dip soldering techniques.

Present cathode ray picture tube sockets generally employ a two piececonstruction which requires the use of a back plate which is secured tothe socket structure by screws, rivets or other means. These sockets areexpensive, and do not lend themselves to the mass production techniquesutilized in assembling electronic apparatus, such as televisionreceivers.

It is an object of this invention to provide an improved cathode raytube socket which readily lends itself to mass production techniques inassembling electronic equipment, yet is less expensive than known typesof sockets.

A further object of this invention is to provide an improved cathode raytube socket which is simple and easy to assemble.

In carrying out this invention, a cathode ray tube socket is providedhaving a one piece molded casing of insulating material of generallycylindrical shape with a base member therein. The base member isprovided with an inner ring of spaced perforations and an outer ring ofspaced perforations with the inner and outer rings of perforations beingin radial alignment. A plurality of hollow dip solder terminal membersare mounted in the outer ring of spaced perforations, and a plurality oftube pin contact members are mounted in the inner ring of spacedperforations. The tube pin contact members have extending tongueportions which are adapted to be bent into the dip solder terminalmembers. Accordingly, when the external electrical leads are inserted inthe dip solder terminals and are soldered thereto the tongue portions ofthe tube pin contact members are also soldered thereto thereby providingan electrical connection between the elegtrical leads and the pinterminals.

These and other objects and advantages of this invention may be moreclearly understood from the following description taken in connectionwith the accompanying drawings, and its scope will be apparent from theappended claim.

In the drawings,

FIGURE 1 shows a top view of the improved cathode ray tube socketembodied in this invention,

FIGURE 2 shows -a side View, partly in section, of the improved cathoderay tube socket of FIGURE 1, and

FIGURE 3 shows the tube pin contact members utilized in the cathode raytube socket of this invention.

Referring now to the drawings, a cathode ray tube socket is shown ofgenerally cylindrical shape. The tube socket 10 has a base portion withan intermediate portion of the base enlarged to form a seat 30. Anopening 12 extends through the base member 15 and a key way 14 isprovided therein for providing alignment for a cathode ray picture tubewhich is adapted to be inserted in the socket 10. An inner ring ofspaced perforations 16 extends through the base member 15 and the seat30. An outer ring of spaced perforations 18, concentric to the innerring, is also provided in the base member. The inner perforations 16 andthe outer perforations 18 are aligned radially such that each innerperforation has a corresponding and cooperating outer perforation. A dipsolder terminal 26 is mounted in each of the perforations ice 13. Thedip solder terminal 26- has a conical shape on one end portion thereof,as will best be seen in FIGURE 2, With openings therein which allowssolder to enter the dip solder terminal.

A tube pin contact member 20, as shown in FIGURE 3, is mounted in theinner perforations 16. The tube pin contact member 20 has an eyelet 22,which is adapted to be mounted in the perforations 16 of the seat 30 onone end portion thereof, and a tongue portion 24 on the other endportion thereof. A recessed portion or channel 28 is provided betweenthe inner and outer openings in the base member to accommodate thetongue portion 24 of the tube pin contact member 20. A plurality of ribs32 are also provided which separate the pairs of inner and outerperforations.

In assembling the socket 10, the tongue portions 24 of the tube pincontact members are bent in and extend into the dip solder terminals 26.The channel 28 between the inner perforation 16 and the outerperforation 18 provides a seat for the tongue member 24. As will best beseen in FIGURE 2, in its assembled position the tongue 24 of the tubepin contact member extends well into the conical portion of the dipsolder terminal 26. External electrical leads may then be inserted downinto the conical portion of the dip solder terminals and the entiresocket is then immersed in solder to a depth sufficient to solder theexternal leads, the tongue 24, and the dip solder terminal 26. Adoughnut shaped solder pot may be used in order to prevent the solderfrom running into the eyelets 22 of the tube pin contact members 20.

Accordingly, in one dip soldering operation both the external electricalconnections and the connections between the tube pin contact members andthe dip solder terminals are accomplished at the same time. Thissimplifies the socket structure and facilitates making externalconnections thereto. In accordance with the applicants'invention no backplate, screws, rivets or other means are required for mounting the dipsolder terminals or the tube pin contact members to the socket whichcuts the cost of the socket considerably.

Since other modifications and changes varied to fit particular operatingrequirements and environments will be apparent to those skilled in theart, the invention is not considered limited to the examples chosen forpurposes of disclosure and covers all modifications and changes which donot constitute departures from the true spirit and scope of thisinvention.

What I claim as new and desire to secure by Letters Patent of the UnitedStates is:

A cathode ray tube socket adapted to receive the terminal pins extendingfrom the base of a cathode ray tube, said socket comprising a one-piececasing of insulating material of general cylindrical shape with a basemember therein to provide a seating surface for said base of saidcathode ray tube, an inner ring of spaced perforations in said basemember, each perforation having a shoulder surface formed therein, saidshoulder surface facing said base of said cathode ray tube, and an outerring of spaced perforations in said base member, a plurality of hollowdip solder terminal members mounted in said outer ring, a plurality oftube pin contact members snugly mounted in said inner ring, each pincontact member having a first edge adjacent said seating surface and asecond edge in contact with said shoulder surface, and a tongue portionextending from said second edge, said tongue portions of said tube pincontact members overlying portions of said base member inter-mediatesaid inner and outer rings on the side of said base member opposite saidseating surface for holding said second edges of said pin contactmembers against said shoulder sur- 4 $3065 and extending into saidhollow dip solder terminal References Cited in the file of this patentmembers whereby said tongue portions are soldered in UNITED STATESPATENTS said dip solder terminal members when external electrical 2 730690 Harasek Jan 10 1956 leads are soldered therein to provide anelectrical con- 2850714 Pace sel'Jt 1958 nection between the electricalleads and said tube pin 5 2:866:171 Wagn; 1958 contact members.2,877,441 Narozny Mar. 10, 1959

